I just got into this CUDA thing, and it raises the temp of my 88900GTS 512 to 51 deg C. I never let my CPU go over 45, and right now it's 12 (because of thermoelectric water cooling).

How hot is too hot for a GPU?

thanx!
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A cerebral mutant, damned by God and doomed by man to understand EVERYTHING and control NOTHING.

My blog

Hi and welcome to PS3GRID/GPUGRID!

I can't tell you exact numbers, but 51°C are for sure no problem for a GPU.
From what I've read in various magazines critical temps for a GPU are about 100°C...
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My 8800GTS 512 is about to 85-87C when load and automatic fan control is on.

So nvidia set it that, and if it fail they must give me back my money or new card.

so I am not woory :)

I just got into this CUDA thing, and it raises the temp of my 88900GTS 512 to 51 deg C. I never let my CPU go over 45, and right now it's 12 (because of thermoelectric water cooling).

How hot is too hot for a GPU?

thanx!

My two XFX NVIDIA 600MHz both run at about 70% fan speed and stay around 65C. They run whipser quiet. I did try to crank one up to 100% fan, I coul hear it a little bit.

At home XFX NVIDIA 640MHz (Factory Overclocked version) of same board, runs the fan at 39% and maintains a temp of 63C.

All are on auto control.

I like the fact the fan speed is so low on the factory overclocked model, it gives it room to work with.

DO NOT TRY THIS AT HOME.

Turn off you air conditioner while showering so cold air does not blow on you, and forget to turn it back on.

I came home yesterday and it was about 90F in the house, thermostat does not register above that. Computer #2 was wailing like a stuck pig. Its only a P4-HT and running only 1 thread for boinc. I've done this before at full power, it can handle it but the fan screeches loudly. I do not have any temp monitoring on that computer, so do not know what CPU temp was. It was above 99F in my room. Computer #1 with the NVIDIA board was quieter. It has good cooling too, but the case is open. The NVIDIA was now making some noise, no wailing like the other, but I could hear it, normally its whisper quiet. The fan speed was up to 42% with temp of 79C. It ran that way about 8 hours. Not bad I'd say. Not to worry either as the XFX NVIDIA boards have a double lifetime warranty.

That means (pick one)
A) When I die, They resurrect me for another go round.
B) When I die, I get to take it with me to the afterlife.
C) The warranty transfers to the next owner, if I sell it or it is passed along in my estate.

Hmm, four nVidia G92 GPUs ran at up to 90 degrees on a single MSI K9A2 Platinum V2 mainboard. Then I added an extra case fan blowing directly onto the boards and now it's betwen 65 and 70 degrees under full load (Folding@Home actually).

I also operate one passively cooled nVidia 8500 GT which is in the bottom most slot of one PC (poor airflow) - and it reaches 102 degrees celsius. Thermal throttling would kick in at 105 degrees. The GPU computes fine, but I suspect it would die soon at this temperature, so I am considering an extra case fan here as well.

Thermal throttling usually kicks in at 105 degrees. This is about the limit where a GPU does not take immediate damage, but would cease to function when heated even further. So it should not be operated in that range for extended periods of time.

Hmm, four nVidia G92 GPUs ran at up to 90 degrees on a single MSI K9A2 Platinum V2 mainboard. Then I added an extra case fan blowing directly onto the boards and now it's betwen 65 and 70 degrees under full load (Folding@Home actually).

I also operate one passively cooled nVidia 8500 GT which is in the bottom most slot of one PC (poor airflow) - and it reaches 102 degrees celsius. Thermal throttling would kick in at 105 degrees. The GPU computes fine, but I suspect it would die soon at this temperature, so I am considering an extra case fan here as well.

Thermal throttling usually kicks in at 105 degrees. This is about the limit where a GPU does not take immediate damage, but would cease to function when heated even further. So it should not be operated in that range for extended periods of time.

> four nVidia G92 GPUs ran at up to 90 degrees on a single MSI K9A2 Platinum V2 mainboard.

Why do you run 4 G92s on one MB? Quad SLI? Woh, you must get some 'mendous frame rates! What rate do you get with Crysis at max quality?


> critical temps for a GPU are about 100°C

!!!
BOILING temperature?? No WAY!! I'm using peltier to cool my CPU waterblock to almost freezing. You can like totally *forget* 100C anywhere near my computer!

BTW, It turns out 51 degrees was my idle temp. This CUDA distriputed computing place has the... peculiar... policy of only letting you do 2 WUs a day, and when I checked, it wasn't running. I can't check now because I already did my quota of 2.

But I can tell you for sure that if I'm anywhere over 70, that I'm not running CUDA anymore!

Hmmmm, or I could water cool my GPU. But I never game, so it would be just for CUDA. I wonder how cold that'll make it. Time to go to Tom's hardware!

--flk

PS
Does anyone else run into their daily quota and have an idle GPU for most of the day? Is that okay with y'all?
____________
A cerebral mutant, damned by God and doomed by man to understand EVERYTHING and control NOTHING.

My blog

...policy of only letting you do 2 WUs a day, and when I checked, it wasn't running. I can't check now because I already did my quota of 2.


PS
Does anyone else run into their daily quota and have an idle GPU for most of the day? Is that okay with y'all?